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Developmental expression mapping of a gene implicated in multiple neurodevelopmental disorders, A2bp1 (Fox1).

ABSTRACT: The neuronal transcription splicing factor, A2BP1, has been implicated in a variety of neurodevelopmental disorders; however, the role of A2BP1 in brain development and gene regulatory function remains to be explicated. Here, we map A2bp1 gene expression, focusing on the developing forebrain of the C57BL6J mouse. Early in forebrain development, A2bp1 expression is highly reminiscent of the expression of genes marking postmitotic GABAergic cells emanating from the ventral telencephalon during migration to the dorsal pallium. Ventral pallial expression remains low after the migratory period. Broader dorsal pallial expression becomes more evident late prenatally and early postnatally. This is paralleled by dense, restricted expression in the ventrobasal dorsal thalamic complex and mid-hypothalamic region. Outside of the forebrain, there is significant expression in motor pathways. These data indicate that A2BP1 mutations may clinically affect very selective forebrain neuron types from early periods of development.

SUBMITTER: Hammock EA

PROVIDER: S-EPMC3080782 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature

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Developmental expression mapping of a gene implicated in multiple neurodevelopmental disorders, A2bp1 (Fox1).

Hammock Elizabeth A D EA Levitt Pat P

Developmental neuroscience 20110223 1

The neuronal transcription splicing factor, A2BP1, has been implicated in a variety of neurodevelopmental disorders; however, the role of A2BP1 in brain development and gene regulatory function remains to be explicated. Here, we map A2bp1 gene expression, focusing on the developing forebrain of the C57BL6J mouse. Early in forebrain development, A2bp1 expression is highly reminiscent of the expression of genes marking postmitotic GABAergic cells emanating from the ventral telencephalon during mig ...[more]

PMID: 21346316

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Project description:The WDR45 gene is localized on the X-chromosome and variants in this gene are linked to six different neurodegenerative disorders, i.e., ß-propeller protein associated neurodegeneration, Rett-like syndrome, intellectual disability, and epileptic encephalopathies including developmental and epileptic encephalopathy, early-onset epileptic encephalopathy and West syndrome and potentially also specific malignancies. WDR45/WIPI4 is a WD-repeat β-propeller protein that belongs to the WIPI (WD repeat domain, phosphoinositide interacting) family. The precise cellular function of WDR45 is still largely unknown, but deletions or conventional variants in WDR45 can lead to macroautophagy/autophagy defects, malfunctioning mitochondria, endoplasmic reticulum stress and unbalanced iron homeostasis, suggesting that this protein functions in one or more pathways regulating directly or indirectly those processes. As a result, the underlying cause of the WDR45-associated disorders remains unknown. In this review, we summarize the current knowledge about the cellular and physiological functions of WDR45 and highlight how genetic variants in its encoding gene may contribute to the pathophysiology of the associated diseases. In particular, we connect clinical manifestations of the disorders with their potential cellular origin of malfunctioning and critically discuss whether it is possible that one of the most prominent shared features, i.e., brain iron accumulation, is the primary cause for those disorders.Abbreviations: ATG/Atg: autophagy related; BPAN: ß-propeller protein associated neurodegeneration; CNS: central nervous system; DEE: developmental and epileptic encephalopathy; EEG: electroencephalograph; ENO2/neuron-specific enolase, enolase 2; EOEE: early-onset epileptic encephalopathy; ER: endoplasmic reticulum; ID: intellectual disability; IDR: intrinsically disordered region; MRI: magnetic resonance imaging; NBIA: neurodegeneration with brain iron accumulation; NCOA4: nuclear receptor coactivator 4; PtdIns3P: phosphatidylinositol-3-phosphate; RLS: Rett-like syndrome; WDR45: WD repeat domain 45; WIPI: WD repeat domain, phosphoinositide interacting.

Dataset Information

Developmental expression mapping of a gene implicated in multiple neurodevelopmental disorders, A2bp1 (Fox1).

Publications

Developmental expression mapping of a gene implicated in multiple neurodevelopmental disorders, A2bp1 (Fox1).

Similar Datasets

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